🚀 go-pugleaf

ab...@FreeNet.Carleton.CA (Heinz W. Wiggeshoff) writes:
> 
>   In the very early 70's, I read about a GE 6xx(?) list processing machine
>   instruction.  Someone commented that complier writers like those types
>   of instructions.  Any GE experts in a.f.c-land?

some where in early '90s(?), the ibm mainframe added instructions
supporting luther woodrums radix partition tree stuff

misc. ref
http://www.garlic.com/~lynn/98.html#19 S/360 operating systems geneaology
http://www.garlic.com/~lynn/98.html#20 Reviving the OS/360 thread (Questions about OS/360)
http://www.garlic.com/~lynn/2001.html#2 A new "Remember when?" period happening right now

from ibm pinciples of operation
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/A.7

and for even more complex stuff there is the whole (supervisor state)
infrastructure controlling access to multiple address spaces along
with the program call mechanism (access registers). The idea behind
program call was to try and have the efficiency of branch and link
while trying to preserve some authentication & access control checking
that would be possible with a kernel call (aka but w/o the overhead).

http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.4
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.5
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.6
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.7
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.8
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.9
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.10
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.11
http://publibz.boulder.ibm.com:80/cgi-bin/bookmgr_OS390/BOOKS/DZ9AR004/5.12

and then there is poor SIE instruction ref'ed in previous posting.

-- 
Anne & Lynn Wheeler | ly...@garlic.com - http://www.garlic.com/~lynn/